Subject: [PATCH 1/5] x86: unexport set_memory_x and set_memory_nx

From: Christoph Hellwig <[email-masked]>
Date: Mon, 26 Aug 2019 09:55:54 +0200

No module currently messed with clearing or setting the execute
permission of kernel memory, and none really should.

Signed-off-by: Christoph Hellwig <[email-masked]>
Acked-by: Peter Zijlstra (Intel) <[email-masked]>
---
 arch/x86/mm/pageattr.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 6a9a77a403c9..a02ca8986299 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -1967,7 +1967,6 @@ int set_memory_x(unsigned long addr, int numpages)
 
 	return change_page_attr_clear(&addr, numpages, __pgprot(_PAGE_NX), 0);
 }
-EXPORT_SYMBOL(set_memory_x);
 
 int set_memory_nx(unsigned long addr, int numpages)
 {
@@ -1976,7 +1975,6 @@ int set_memory_nx(unsigned long addr, int numpages)
 
 	return change_page_attr_set(&addr, numpages, __pgprot(_PAGE_NX), 0);
 }
-EXPORT_SYMBOL(set_memory_nx);
 
 int set_memory_ro(unsigned long addr, int numpages)
 {
-- 
2.20.1

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